Operculodinium hirsutum subsp. varians
From dinoflaj2
"subsp. varians" (Wetzel, 1933b, p.47-48, pl.4, figs.27-29) Lentin and Williams, 1973, p.102. Holotype: not designated. Lectotype: Wetzel, 1933b, fig.29; designated by Lentin and Williams (1989, p.78). NOW Coronifera? striolata subsp. varians. Originally Hystrichosphaera hirsuta subsp. varians (name not validly published), subsequently Baltisphaeridium hirsutum forma varians (name not validly published; Appendix A), thirdly Operculodinium? hirsutum subsp. varians (name not validly published), fourthly (and now) Coronifera? striolata subsp. varians. Age: Late Cretaceous. Parent: Operculodinium hirsutum